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Mandarinka [93]
3 years ago
14

Your tongue has about 3,000 taste buds. True False

Chemistry
1 answer:
olganol [36]3 years ago
3 0
False , tongue has more than 9000 taste buds . 
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2. This is like a mountain but smaller.<br> A. valley<br> B. hill<br> C. plateau<br> D. plain
dimaraw [331]

Answer:

hill

Explanation:

7 0
3 years ago
Read 2 more answers
Choose the substance with the lowest surface tension. choose the substance with the lowest surface tension. (ch3)2so ch3ch2ch2ch
8090 [49]

Surface tension is defined as the tendency of elasticity of a liquid surface that makes it to achieve the possible least surface area. It depends upon the intermolecular forces present on the boundary of the surface of the compound and its contact.

n-butane (CH_{3}CH_{2}CH_{2}CH_{3}) is non-polar compound and it consist of only weak dispersion forces that are responsible for any contact with the surface.

In comparison to other given substances, n-butane has the weakest dispersion forces. Thus, n-butane has lowest surface tension.

4 0
3 years ago
Burning 1 kg of coal releases about 3 million joules of energy. If you could use all of the chemical energy to lift another kilo
Katarina [22]

I could lift 3.06 x 10⁵ m high

<h3>Further explanation </h3>

Energy is the ability to do work. Energy can change from one energy to another

Potential energy is the energy that an object has because of its position

The potential energy can be formulated:

Ep = m. g. h

E = potential energy of an object, joule

m = object mass, kg

g = gravity acceleration, m / s²

h = height of an object, m

energy of coal = 3.10⁶ J

mass = 1 kg

g = 9.8 m/s²

\tt h=\dfrac{E}{m.g}\\\\h=\dfrac{3.10^6}{1\times 9.8}=3.06\times 10^5`m

5 0
3 years ago
In the greenhouse effect, infrared rays are trapped in the atmosphere. a. true b. false
DedPeter [7]
The answer is b. The answer is false.
6 0
3 years ago
Read 2 more answers
The individual dipole moments in ammonia (NH3) do not cancel each other
kozerog [31]

Answer:

                    The strongest force that exists between molecules of Ammonia is <em>Hydrogen Bonding</em>.

Explanation:

                    Hydrogen Bond Interactions are those interactions which are formed between a partial positive hydrogen atom bonded directly to most electronegative atoms (i.e. F, O and N) of one molecule interacts with the partial negative most electronegative atom of another molecule.

                    Hence, in ammonia the nitrogen atom being more electronegative element than Hydrogen will be having partial negative charge and making the hydrogen atom partial positive. Therefore, the attraction between these partials charges will be the main force of interaction between ammonia molecules.

                  Other than Hydrogen bonding interactions ammonia will also experience dipole-dipole attraction and London dispersion forces.

4 0
3 years ago
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